Here is the description of a new assembly language: * 8 registers (R1, R2, R3, R4, R5, R6, R7, R8) that can hold integers. * 1 flag that can hold a boolean value (True or False). * 100 memory addresses (0-99) that can hold integers. * 1 instruction pointer that points to the current instruction being executed. Each instruction is of the form OP ARG1 ARG2 ... where ARGn can be either a register (e.g., R1) or a constant (e.g., 10). Labels are written with a lowercase word followed by colon. The assembly language supports the following instructions: * SET Rx C: Assigns the value C to register Rx. * ADD Rx Ry Rz: Adds the values of Ry and Rz and stores the result in Rx. * (similarly for SUB, MUL, DIV, MOD) * EQ Rx Ry: Sets the flag to True if Rx and Ry are equal, False otherwise. * (similarly for NEQ, LT (Rx < Ry), LTE, GT, GTE) * INC/DEC Rx: Increments/Decrements the value of Rx by one. * JMP L: Jumps to label L unconditionally. * JT/JF (jump if true / jump if false) L: Jumps to label L if the is set or not set. * LOAD Rx M: Loads the value at memory address M into register Rx. * STORE Rx M: Stores the value of register Rx into memory address M. * HCF: Stops the program (with pizzazz) Given this assembly language, write a program that puts the first 20 square (1, 4, 9...) numbers in memory cells 0..19
Here is the description of a new assembly language: * 8 registers (R1, R2, R3, R4, R5, R6, R7, R8) that can hold integers. * 1 flag that can hold a boolean value (True or False). * 100 memory addresses (0-99) that can hold integers. * 1 instruction pointer that points to the current instruction being executed. Each instruction is of the form OP ARG1 ARG2 ... where ARGn can be either a register (e.g., R1) or a constant (e.g., 10). Labels are written with a lowercase word followed by colon. The assembly language supports the following instructions: * SET Rx C: Assigns the value C to register Rx. * ADD Rx Ry Rz: Adds the values of Ry and Rz and stores the result in Rx. * (similarly for SUB, MUL, DIV, MOD) * EQ Rx Ry: Sets the flag to True if Rx and Ry are equal, False otherwise. * (similarly for NEQ, LT (Rx < Ry), LTE, GT, GTE) * INC/DEC Rx: Increments/Decrements the value of Rx by one. * JMP L: Jumps to label L unconditionally. * JT/JF (jump if true / jump if false) L: Jumps to label L if the is set or not set. * LOAD Rx M: Loads the value at memory address M into register Rx. * STORE Rx M: Stores the value of register Rx into memory address M. * HCF: Stops the program (with pizzazz) Given this assembly language, write a program that puts the first 20 square (1, 4, 9...) numbers in memory cells 0..19
# Square Numbers Assembly Program This program calculates the first 20 square numbers (1, 4, 9, 16, ..., 400) and stores them in memory locations 0 through 19.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ; Initialize registers SET R1 1 ; R1 will be the counter (1, 2, 3, ...) SET R2 0 ; R2 will hold the square value SET R3 0 ; R3 will be the memory address (0 to 19) SET R4 20 ; R4 holds our limit (20 squares) loop: MUL R2 R1 R1 ; Square the current number (R1 * R1) STORE R2 R3 ; Store the square at the current memory address INC R1 ; Move to next number to square INC R3 ; Move to next memory address LT R3 R4 ; Check if we've calculated all 20 squares JT loop ; If R3 < 20, continue the loop HCF ; We're done, halt and catch fire |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ; Initialize registers SET R1 1 ; R1 will be the counter (1, 2, 3, ...) SET R2 0 ; R2 will hold the square value SET R3 0 ; R3 will be the memory address (0 to 19) SET R4 20 ; R4 holds our limit (20 squares) loop: MUL R2 R1 R1 ; Square the current number (R1 * R1) STORE R2 R3 ; Store the square at the current memory address INC R1 ; Move to next number to square INC R3 ; Move to next memory address LT R3 R4 ; Check if we've calculated all 20 squares JT loop ; If R3 < 20, continue the loop HCF ; We're done, halt and catch fire |
Resulting in output: True
Here is the description of a new assembly language: * 8 registers (R1, R2, R3, R4, R5, R6, R7, R8) that can hold integers. * 1 flag that can hold a boolean value (True or False). * 100 memory addresses (0-99) that can hold integers. * 1 instruction pointer that points to the current instruction being executed. Each instruction is of the form OP ARG1 ARG2 ... where ARGn can be either a register (e.g., R1) or a constant (e.g., 10). Labels are written with a lowercase word followed by colon. The assembly language supports the following instructions: * SET Rx C: Assigns the value C to register Rx. * ADD Rx Ry Rz: Adds the values of Ry and Rz and stores the result in Rx. * (similarly for SUB, MUL, DIV, MOD) * EQ Rx Ry: Sets the flag to True if Rx and Ry are equal, False otherwise. * (similarly for NEQ, LT (Rx < Ry), LTE, GT, GTE) * INC/DEC Rx: Increments/Decrements the value of Rx by one. * JMP L: Jumps to label L unconditionally. * JT/JF (jump if true / jump if false) L: Jumps to label L if the is set or not set. * LOAD Rx M: Loads the value at memory address M into register Rx. * STORE Rx M: Stores the value of register Rx into memory address M. * HCF: Stops the program (with pizzazz) Given this assembly language, write a program that puts the first 20 square (1, 4, 9...) numbers in memory cells 0..19
Here is the description of a new assembly language: * 8 registers (R1, R2, R3, R4, R5, R6, R7, R8) that can hold integers. * 1 flag that can hold a boolean value (True or False). * 100 memory addresses (0-99) that can hold integers. * 1 instruction pointer that points to the current instruction being executed. Each instruction is of the form OP ARG1 ARG2 ... where ARGn can be either a register (e.g., R1) or a constant (e.g., 10). Labels are written with a lowercase word followed by colon. The assembly language supports the following instructions: * SET Rx C: Assigns the value C to register Rx. * ADD Rx Ry Rz: Adds the values of Ry and Rz and stores the result in Rx. * (similarly for SUB, MUL, DIV, MOD) * EQ Rx Ry: Sets the flag to True if Rx and Ry are equal, False otherwise. * (similarly for NEQ, LT (Rx < Ry), LTE, GT, GTE) * INC/DEC Rx: Increments/Decrements the value of Rx by one. * JMP L: Jumps to label L unconditionally. * JT/JF (jump if true / jump if false) L: Jumps to label L if the is set or not set. * LOAD Rx M: Loads the value at memory address M into register Rx. * STORE Rx M: Stores the value of register Rx into memory address M. * HCF: Stops the program (with pizzazz) Given this assembly language, write a program that puts the first 20 square (1, 4, 9...) numbers in memory cells 0..19
# Assembly Program to Store First 20 Square Numbers This program calculates the first 20 square numbers (1, 4, 9, 16, ...) and stores them in memory addresses 0 through 19.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | # Initialize registers SET R1 1 # R1 will be the counter (1 to 20) SET R2 0 # R2 will be the memory address (0 to 19) loop: # Calculate square: R3 = R1 * R1 MUL R3 R1 R1 # Store the square in memory at position R2 STORE R3 R2 # Increment counter INC R1 # Increment memory address INC R2 # Check if we've calculated 20 squares SET R4 20 LT R2 R4 # Sets flag to true if R2 < 20 JT loop # Jump back to loop if flag is true # We're done, terminate the program HCF |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | # Initialize registers SET R1 1 # R1 will be the counter (1 to 20) SET R2 0 # R2 will be the memory address (0 to 19) loop: # Calculate square: R3 = R1 * R1 MUL R3 R1 R1 # Store the square in memory at position R2 STORE R3 R2 # Increment counter INC R1 # Increment memory address INC R2 # Check if we've calculated 20 squares SET R4 20 LT R2 R4 # Sets flag to true if R2 < 20 JT loop # Jump back to loop if flag is true # We're done, terminate the program HCF |
Resulting in output: True